Our first real-time watchlist!
Tyler Goodlet
parent
b8a3fb67a1
commit
13342c459a
|
|
@ -0,0 +1,333 @@
|
|||
"""
|
||||
A real-time, sorted watchlist
|
||||
"""
|
||||
import os
|
||||
from importlib import import_module
|
||||
|
||||
import click
|
||||
import trio
|
||||
|
||||
# use the trio async loop
|
||||
os.environ['KIVY_EVENTLOOP'] = 'trio'
|
||||
|
||||
from kivy.uix.widget import Widget
|
||||
from kivy.uix.boxlayout import BoxLayout
|
||||
from kivy.uix.gridlayout import GridLayout
|
||||
from kivy.uix.label import Label
|
||||
from kivy.uix.scrollview import ScrollView
|
||||
from kivy.core.window import Window
|
||||
from kivy.properties import DictProperty
|
||||
from kivy.lang import Builder
|
||||
from kivy import utils
|
||||
from kivy.app import async_runTouchApp
|
||||
|
||||
from ..log import get_logger, get_console_log
|
||||
|
||||
log = get_logger('watchlist')
|
||||
|
||||
|
||||
def same_rgb(val):
|
||||
return ', '.join(map(str, [val]*3))
|
||||
|
||||
|
||||
def colorcode(name):
|
||||
if not name:
|
||||
name = 'darkgray'
|
||||
_names2hexs = {
|
||||
'darkgray': 'a9a9a9',
|
||||
'green': '008000',
|
||||
'red': 'ff3333',
|
||||
'red2': 'ff0000',
|
||||
'dark_red': '8b0000',
|
||||
'firebrick': 'b22222',
|
||||
}
|
||||
return utils.rgba(_names2hexs[name])
|
||||
|
||||
|
||||
_kv = (f'''
|
||||
#:kivy 1.10.0
|
||||
|
||||
<HeaderCell>
|
||||
# font_size: '15'
|
||||
size: self.texture_size
|
||||
# size_hint_y: None
|
||||
# height: '100dp'
|
||||
outline_color: {same_rgb(0.01)}
|
||||
width: '100dp'
|
||||
valign: 'middle'
|
||||
halign: 'center'
|
||||
canvas.before:
|
||||
Color:
|
||||
rgb: {same_rgb(0.13)}
|
||||
Rectangle:
|
||||
pos: self.pos
|
||||
size: self.size
|
||||
|
||||
<Cell>
|
||||
text_size: self.size
|
||||
size: self.texture_size
|
||||
# font_size: '15'
|
||||
font_color: {colorcode('darkgray')}
|
||||
# font_name: 'sans serif'
|
||||
valign: 'middle'
|
||||
halign: 'center'
|
||||
# outline_color: {same_rgb(0.01)}
|
||||
canvas.before:
|
||||
Color:
|
||||
rgb: {same_rgb(0.05)}
|
||||
Rectangle:
|
||||
pos: self.pos
|
||||
size: self.size
|
||||
|
||||
<TickerTable>
|
||||
spacing: '5dp'
|
||||
row_force_default: True
|
||||
row_default_height: 75
|
||||
# size_hint_y: None
|
||||
size_hint: 1, None
|
||||
cols: 1
|
||||
|
||||
<Row>
|
||||
spacing: '4dp'
|
||||
minimum_height: 200 # should be pulled from Cell text size
|
||||
minimum_width: 200
|
||||
row_force_default: True
|
||||
row_default_height: 75
|
||||
outline_color: {same_rgb(2)}
|
||||
size_hint: 1, None
|
||||
''')
|
||||
|
||||
|
||||
_qt_keys = {
|
||||
# 'symbol': 'symbol', # done manually in remap_keys
|
||||
'lastTradePrice': 'last',
|
||||
'lastTradeSize': 'last size',
|
||||
'askPrice': 'ask',
|
||||
'askSize': 'ask price',
|
||||
'bidPrice': 'bid',
|
||||
'bidSize': 'bid size',
|
||||
'volume': 'vol',
|
||||
'VWAP': 'vwap',
|
||||
'high52w': 'high52w',
|
||||
'highPrice': 'high',
|
||||
# "lastTradePriceTrHrs": 7.99,
|
||||
# "lastTradeTick": "Equal",
|
||||
# "lastTradeTime": "2018-01-30T18:28:23.434000-05:00",
|
||||
'low52w': 'low52w',
|
||||
'lowPrice': 'low day',
|
||||
'openPrice': 'open',
|
||||
# "symbolId": 3575753,
|
||||
# "tier": "",
|
||||
'isHalted': 'halted',
|
||||
'delay': 'delay', # as subscript 'p'
|
||||
}
|
||||
|
||||
|
||||
def remap_keys(quote, keymap=_qt_keys):
|
||||
"""Remap a list of quote dicts ``quotes`` using
|
||||
the mapping of old keys -> new keys ``keymap``.
|
||||
"""
|
||||
open_price = quote['openPrice']
|
||||
new = {
|
||||
'symbol': quote['symbol'],
|
||||
'%': f"{(quote['lastTradePrice'] - open_price) / open_price:10.2f}"
|
||||
}
|
||||
for key, new_key in keymap.items():
|
||||
value = quote[key]
|
||||
new[new_key] = value
|
||||
|
||||
return new
|
||||
|
||||
|
||||
class HeaderCell(Label):
|
||||
"""Column header cell label.
|
||||
"""
|
||||
|
||||
|
||||
class Cell(Label):
|
||||
"""Data header cell label.
|
||||
"""
|
||||
|
||||
|
||||
class Row(GridLayout):
|
||||
"""A grid for displaying a row of ticker quote data.
|
||||
|
||||
The row fields can be updated using the ``fields`` property which will in
|
||||
turn adjust the text color of the values based on content changes.
|
||||
"""
|
||||
def __init__(self, record, headers=(), cell_type=Cell, **kwargs):
|
||||
super(Row, self).__init__(cols=len(record), **kwargs)
|
||||
self._cell_widgets = {}
|
||||
self._last_record = record
|
||||
|
||||
# build out row using Cell labels
|
||||
for key, val in record.items():
|
||||
header = key in headers
|
||||
cell = self._append_cell(val, header=header)
|
||||
self._cell_widgets[key] = cell
|
||||
|
||||
def _append_cell(self, text, colorname=None, header=False):
|
||||
if not len(self._cell_widgets) < self.cols:
|
||||
raise ValueError(f"Can not append more then {self.cols} cells")
|
||||
|
||||
# header cells just have a different colour
|
||||
celltype = HeaderCell if header else Cell
|
||||
cell = celltype(text=str(text), color=colorcode(colorname))
|
||||
self.add_widget(cell)
|
||||
return cell
|
||||
|
||||
|
||||
class TickerTable(GridLayout):
|
||||
"""A grid for displaying ticker quote records as a table.
|
||||
"""
|
||||
def __init__(self, **kwargs):
|
||||
super(TickerTable, self).__init__(**kwargs)
|
||||
self.symbols2rows = {}
|
||||
|
||||
def append_row(self, record, colorname='firebrick'):
|
||||
row = Row(record, headers=('symbol',))
|
||||
# store ref to each row
|
||||
self.symbols2rows[row._last_record['symbol']] = row
|
||||
self.add_widget(row)
|
||||
return row
|
||||
|
||||
|
||||
def header_row(headers):
|
||||
"""Create a single "header" row from a sequence of keys.
|
||||
"""
|
||||
# process headers via first quote record
|
||||
headers_dict = {key: key for key in headers}
|
||||
row = Row(headers_dict, headers=headers)
|
||||
return row
|
||||
|
||||
|
||||
def ticker_table(quotes, **kwargs):
|
||||
"""Create a new ticker table from a list of quote dicts.
|
||||
"""
|
||||
table = TickerTable(cols=1)
|
||||
|
||||
for ticker_record in quotes:
|
||||
table.append_row(ticker_record)
|
||||
|
||||
return table
|
||||
|
||||
|
||||
async def update_quotes(widgets, queue):
|
||||
"""Process live quotes by updating ticker rows.
|
||||
"""
|
||||
grid = widgets['grid']
|
||||
|
||||
while True:
|
||||
log.debug("Waiting on quotes")
|
||||
quotes = await queue.get()
|
||||
rows = []
|
||||
for quote in quotes:
|
||||
data = remap_keys(quote)
|
||||
row = grid.symbols2rows[data['symbol']]
|
||||
rows.append((data, row))
|
||||
new = set(data.items()) - set(row._last_record.items())
|
||||
if new:
|
||||
for key, val in filter(lambda item: item[0] != '%', new):
|
||||
# logic for value coloring: up-green, down-red
|
||||
if row._last_record[key] < val:
|
||||
color = colorcode('green')
|
||||
elif row._last_record[key] > val:
|
||||
color = colorcode('red2')
|
||||
|
||||
cell = row._cell_widgets[key]
|
||||
cell.text = str(val)
|
||||
cell.color = color
|
||||
|
||||
row._last_record = data
|
||||
|
||||
hdrcell = row._cell_widgets['symbol']
|
||||
chngcell = row._cell_widgets['%']
|
||||
daychange = float(data['%'])
|
||||
if daychange < 0.:
|
||||
color = colorcode('red2')
|
||||
chngcell.color = hdrcell.color = color
|
||||
elif daychange > 0.:
|
||||
color = colorcode('green')
|
||||
chngcell.color = hdrcell.color = color
|
||||
|
||||
# sort rows by % change
|
||||
for i, pair in enumerate(
|
||||
sorted(rows, key=lambda item: float(item[0]['%']))
|
||||
):
|
||||
data, row = pair
|
||||
if grid.children[i] != row:
|
||||
grid.remove_widget(row)
|
||||
grid.add_widget(row, index=i)
|
||||
|
||||
|
||||
async def run_kivy(root, nursery):
|
||||
'''Trio-kivy entry point.
|
||||
'''
|
||||
# run kivy
|
||||
await async_runTouchApp(root)
|
||||
# now cancel all the other tasks that may be running
|
||||
nursery.cancel_scope.cancel()
|
||||
|
||||
|
||||
async def _async_main(tickers, brokermod):
|
||||
'''Launch kivy app + all other related tasks.
|
||||
'''
|
||||
queue = trio.Queue(1000)
|
||||
|
||||
async with brokermod.get_client() as client:
|
||||
async with trio.open_nursery() as nursery:
|
||||
nursery.start_soon(brokermod.poll_tickers, client, tickers, queue)
|
||||
|
||||
# get first quotes response
|
||||
quotes = []
|
||||
pkts = await queue.get()
|
||||
for quote in pkts:
|
||||
quotes.append(remap_keys(quote))
|
||||
|
||||
# build out UI
|
||||
Builder.load_string(_kv)
|
||||
root = BoxLayout(orientation='vertical')
|
||||
header = header_row(quotes[0].keys())
|
||||
root.add_widget(header)
|
||||
grid = ticker_table(quotes)
|
||||
grid.bind(minimum_height=grid.setter('height'))
|
||||
scroll = ScrollView(
|
||||
size=(Window.width, Window.height), bar_margin=10)
|
||||
scroll.add_widget(grid)
|
||||
root.add_widget(scroll)
|
||||
|
||||
widgets = {
|
||||
'grid': grid,
|
||||
'root': root,
|
||||
'header': header,
|
||||
'scroll': scroll,
|
||||
}
|
||||
|
||||
nursery.start_soon(run_kivy, widgets['root'], nursery)
|
||||
nursery.start_soon(update_quotes, widgets, queue)
|
||||
|
||||
|
||||
@click.group()
|
||||
def cli():
|
||||
pass
|
||||
|
||||
|
||||
@cli.command()
|
||||
@click.option('--broker', default='questrade', help='Broker backend to use')
|
||||
@click.option('--loglevel', '-l', default='warning', help='Logging level')
|
||||
def run(loglevel, broker):
|
||||
"""Spawn a watchlist.
|
||||
"""
|
||||
get_console_log(loglevel) # activate console logging
|
||||
brokermod = import_module('.' + broker, 'piker.brokers')
|
||||
|
||||
watchlists = {
|
||||
'cannabis': [
|
||||
'EMH.VN', 'LEAF.TO', 'HVT.VN', 'HMMJ.TO', 'APH.TO',
|
||||
'CBW.VN', 'TRST.CN', 'VFF.TO', 'ACB.TO', 'ABCN.VN'
|
||||
'APH.TO', 'MARI.CN', 'WMD.VN', 'LEAF.TO', 'THCX.VN'
|
||||
],
|
||||
}
|
||||
# broker_conf_path = os.path.join(click.get_app_dir('piker'), 'watchlists.json')
|
||||
# from piker.testing import _quote_streamer as brokermod
|
||||
trio.run(_async_main, watchlists['cannabis'], brokermod)
|
||||
Loading…
Reference in New Issue